Home / 3,158.08-4,737.36-1,620.16

Finding the Fourth Proportional to 3,158.08, 4,737.36 and 1,620.16

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Solution

The fourth proportional to 3,158.08, 4,737.36 and 1,620.16 is: 2,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.08 : 4,737.36 = 1,620.16 : x
  2. Step 2: Convert to fraction form
    3,158.08/4,737.36 = 1,620.16/x
  3. Step 3: Cross multiply
    3,158.08x = 4,737.36 × 1,620.16
  4. Step 4: Simplify right side
    3,158.08x = 7,675,281.18
  5. Step 5: Solve for x
    x = 7,675,281.18/3,158.08
  6. Step 6: Final answer
    x = 2,430.36

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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.