Home / 5,547.18-8,320.73-1,387.16

Finding the Fourth Proportional to 5,547.18, 8,320.73 and 1,387.16

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Solution

The fourth proportional to 5,547.18, 8,320.73 and 1,387.16 is: 2,080.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,547.18 : 8,320.73 = 1,387.16 : x
  2. Step 2: Convert to fraction form
    5,547.18/8,320.73 = 1,387.16/x
  3. Step 3: Cross multiply
    5,547.18x = 8,320.73 × 1,387.16
  4. Step 4: Simplify right side
    5,547.18x = 11,542,135.29
  5. Step 5: Solve for x
    x = 11,542,135.29/5,547.18
  6. Step 6: Final answer
    x = 2,080.72

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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.