Home / 7,740.19-10,681.47-4,203.40

Finding the Fourth Proportional to 7,740.19, 10,681.47 and 4,203.40

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Solution

The fourth proportional to 7,740.19, 10,681.47 and 4,203.40 is: 5,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.19 : 10,681.47 = 4,203.40 : x
  2. Step 2: Convert to fraction form
    7,740.19/10,681.47 = 4,203.40/x
  3. Step 3: Cross multiply
    7,740.19x = 10,681.47 × 4,203.40
  4. Step 4: Simplify right side
    7,740.19x = 44,898,491.00
  5. Step 5: Solve for x
    x = 44,898,491.00/7,740.19
  6. Step 6: Final answer
    x = 5,800.70

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.