Home / 5,439.05-7,513.65-5,045.39

Finding the Fourth Proportional to 5,439.05, 7,513.65 and 5,045.39

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Solution

The fourth proportional to 5,439.05, 7,513.65 and 5,045.39 is: 6,969.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.05 : 7,513.65 = 5,045.39 : x
  2. Step 2: Convert to fraction form
    5,439.05/7,513.65 = 5,045.39/x
  3. Step 3: Cross multiply
    5,439.05x = 7,513.65 × 5,045.39
  4. Step 4: Simplify right side
    5,439.05x = 37,909,294.57
  5. Step 5: Solve for x
    x = 37,909,294.57/5,439.05
  6. Step 6: Final answer
    x = 6,969.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.