Home / 3,130.71-4,685.70-2,088.24

Finding the Fourth Proportional to 3,130.71, 4,685.70 and 2,088.24

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Solution

The fourth proportional to 3,130.71, 4,685.70 and 2,088.24 is: 3,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.71 : 4,685.70 = 2,088.24 : x
  2. Step 2: Convert to fraction form
    3,130.71/4,685.70 = 2,088.24/x
  3. Step 3: Cross multiply
    3,130.71x = 4,685.70 × 2,088.24
  4. Step 4: Simplify right side
    3,130.71x = 9,784,866.17
  5. Step 5: Solve for x
    x = 9,784,866.17/3,130.71
  6. Step 6: Final answer
    x = 3,125.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.