Home / 7,712.19-10,642.85-4,175.39

Finding the Fourth Proportional to 7,712.19, 10,642.85 and 4,175.39

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Solution

The fourth proportional to 7,712.19, 10,642.85 and 4,175.39 is: 5,762.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.19 : 10,642.85 = 4,175.39 : x
  2. Step 2: Convert to fraction form
    7,712.19/10,642.85 = 4,175.39/x
  3. Step 3: Cross multiply
    7,712.19x = 10,642.85 × 4,175.39
  4. Step 4: Simplify right side
    7,712.19x = 44,438,086.51
  5. Step 5: Solve for x
    x = 44,438,086.51/7,712.19
  6. Step 6: Final answer
    x = 5,762.06

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Half scale
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Double scale
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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.