Home / 5,488.07-7,574.65-3,720.24

Finding the Fourth Proportional to 5,488.07, 7,574.65 and 3,720.24

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Solution

The fourth proportional to 5,488.07, 7,574.65 and 3,720.24 is: 5,134.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.07 : 7,574.65 = 3,720.24 : x
  2. Step 2: Convert to fraction form
    5,488.07/7,574.65 = 3,720.24/x
  3. Step 3: Cross multiply
    5,488.07x = 7,574.65 × 3,720.24
  4. Step 4: Simplify right side
    5,488.07x = 28,179,506.62
  5. Step 5: Solve for x
    x = 28,179,506.62/5,488.07
  6. Step 6: Final answer
    x = 5,134.69

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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.