Home / 4,557.20-6,290.24-2,985.40

Finding the Fourth Proportional to 4,557.20, 6,290.24 and 2,985.40

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Solution

The fourth proportional to 4,557.20, 6,290.24 and 2,985.40 is: 4,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,557.20 : 6,290.24 = 2,985.40 : x
  2. Step 2: Convert to fraction form
    4,557.20/6,290.24 = 2,985.40/x
  3. Step 3: Cross multiply
    4,557.20x = 6,290.24 × 2,985.40
  4. Step 4: Simplify right side
    4,557.20x = 18,778,882.50
  5. Step 5: Solve for x
    x = 18,778,882.50/4,557.20
  6. Step 6: Final answer
    x = 4,120.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.