Home / 4,605.72-6,909.60-1,319.04

Finding the Fourth Proportional to 4,605.72, 6,909.60 and 1,319.04

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Solution

The fourth proportional to 4,605.72, 6,909.60 and 1,319.04 is: 1,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,605.72 : 6,909.60 = 1,319.04 : x
  2. Step 2: Convert to fraction form
    4,605.72/6,909.60 = 1,319.04/x
  3. Step 3: Cross multiply
    4,605.72x = 6,909.60 × 1,319.04
  4. Step 4: Simplify right side
    4,605.72x = 9,114,038.78
  5. Step 5: Solve for x
    x = 9,114,038.78/4,605.72
  6. Step 6: Final answer
    x = 1,978.85

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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.