Home / 3,011.47-4,155.89-1,816.45

Finding the Fourth Proportional to 3,011.47, 4,155.89 and 1,816.45

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Solution

The fourth proportional to 3,011.47, 4,155.89 and 1,816.45 is: 2,506.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.47 : 4,155.89 = 1,816.45 : x
  2. Step 2: Convert to fraction form
    3,011.47/4,155.89 = 1,816.45/x
  3. Step 3: Cross multiply
    3,011.47x = 4,155.89 × 1,816.45
  4. Step 4: Simplify right side
    3,011.47x = 7,548,946.92
  5. Step 5: Solve for x
    x = 7,548,946.92/3,011.47
  6. Step 6: Final answer
    x = 2,506.73

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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.