Home / 3,547.24-5,320.10-1,355.20

Finding the Fourth Proportional to 3,547.24, 5,320.10 and 1,355.20

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Solution

The fourth proportional to 3,547.24, 5,320.10 and 1,355.20 is: 2,032.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.24 : 5,320.10 = 1,355.20 : x
  2. Step 2: Convert to fraction form
    3,547.24/5,320.10 = 1,355.20/x
  3. Step 3: Cross multiply
    3,547.24x = 5,320.10 × 1,355.20
  4. Step 4: Simplify right side
    3,547.24x = 7,209,799.52
  5. Step 5: Solve for x
    x = 7,209,799.52/3,547.24
  6. Step 6: Final answer
    x = 2,032.51

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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.