Home / 4,607.28-6,909.50-1,319.49

Finding the Fourth Proportional to 4,607.28, 6,909.50 and 1,319.49

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Solution

The fourth proportional to 4,607.28, 6,909.50 and 1,319.49 is: 1,978.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,607.28 : 6,909.50 = 1,319.49 : x
  2. Step 2: Convert to fraction form
    4,607.28/6,909.50 = 1,319.49/x
  3. Step 3: Cross multiply
    4,607.28x = 6,909.50 × 1,319.49
  4. Step 4: Simplify right side
    4,607.28x = 9,117,019.45
  5. Step 5: Solve for x
    x = 9,117,019.45/4,607.28
  6. Step 6: Final answer
    x = 1,978.83

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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.