Home / 4,885.48-7,328.15-1,187.70

Finding the Fourth Proportional to 4,885.48, 7,328.15 and 1,187.70

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Solution

The fourth proportional to 4,885.48, 7,328.15 and 1,187.70 is: 1,781.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.48 : 7,328.15 = 1,187.70 : x
  2. Step 2: Convert to fraction form
    4,885.48/7,328.15 = 1,187.70/x
  3. Step 3: Cross multiply
    4,885.48x = 7,328.15 × 1,187.70
  4. Step 4: Simplify right side
    4,885.48x = 8,703,607.11
  5. Step 5: Solve for x
    x = 8,703,607.11/4,885.48
  6. Step 6: Final answer
    x = 1,781.53

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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.