Home / 3,547.77-5,321.66-1,987.04

Finding the Fourth Proportional to 3,547.77, 5,321.66 and 1,987.04

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Solution

The fourth proportional to 3,547.77, 5,321.66 and 1,987.04 is: 2,980.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.77 : 5,321.66 = 1,987.04 : x
  2. Step 2: Convert to fraction form
    3,547.77/5,321.66 = 1,987.04/x
  3. Step 3: Cross multiply
    3,547.77x = 5,321.66 × 1,987.04
  4. Step 4: Simplify right side
    3,547.77x = 10,574,314.74
  5. Step 5: Solve for x
    x = 10,574,314.74/3,547.77
  6. Step 6: Final answer
    x = 2,980.55

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Similar ratio
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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.