Home / 5,005.05-7,507.91-1,307.40

Finding the Fourth Proportional to 5,005.05, 7,507.91 and 1,307.40

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Solution

The fourth proportional to 5,005.05, 7,507.91 and 1,307.40 is: 1,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,005.05 : 7,507.91 = 1,307.40 : x
  2. Step 2: Convert to fraction form
    5,005.05/7,507.91 = 1,307.40/x
  3. Step 3: Cross multiply
    5,005.05x = 7,507.91 × 1,307.40
  4. Step 4: Simplify right side
    5,005.05x = 9,815,841.53
  5. Step 5: Solve for x
    x = 9,815,841.53/5,005.05
  6. Step 6: Final answer
    x = 1,961.19

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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.