Home / 4,987.60-7,476.54-2,389.12

Finding the Fourth Proportional to 4,987.60, 7,476.54 and 2,389.12

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Solution

The fourth proportional to 4,987.60, 7,476.54 and 2,389.12 is: 3,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.60 : 7,476.54 = 2,389.12 : x
  2. Step 2: Convert to fraction form
    4,987.60/7,476.54 = 2,389.12/x
  3. Step 3: Cross multiply
    4,987.60x = 7,476.54 × 2,389.12
  4. Step 4: Simplify right side
    4,987.60x = 17,862,351.24
  5. Step 5: Solve for x
    x = 17,862,351.24/4,987.60
  6. Step 6: Final answer
    x = 3,581.35

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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.