Home / 4,307.91-6,461.88-1,187.79

Finding the Fourth Proportional to 4,307.91, 6,461.88 and 1,187.79

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Solution

The fourth proportional to 4,307.91, 6,461.88 and 1,187.79 is: 1,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,307.91 : 6,461.88 = 1,187.79 : x
  2. Step 2: Convert to fraction form
    4,307.91/6,461.88 = 1,187.79/x
  3. Step 3: Cross multiply
    4,307.91x = 6,461.88 × 1,187.79
  4. Step 4: Simplify right side
    4,307.91x = 7,675,356.45
  5. Step 5: Solve for x
    x = 7,675,356.45/4,307.91
  6. Step 6: Final answer
    x = 1,781.69

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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.