Home / 3,557.30-5,333.67-1,478.74

Finding the Fourth Proportional to 3,557.30, 5,333.67 and 1,478.74

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Solution

The fourth proportional to 3,557.30, 5,333.67 and 1,478.74 is: 2,217.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.30 : 5,333.67 = 1,478.74 : x
  2. Step 2: Convert to fraction form
    3,557.30/5,333.67 = 1,478.74/x
  3. Step 3: Cross multiply
    3,557.30x = 5,333.67 × 1,478.74
  4. Step 4: Simplify right side
    3,557.30x = 7,887,111.18
  5. Step 5: Solve for x
    x = 7,887,111.18/3,557.30
  6. Step 6: Final answer
    x = 2,217.16

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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.