Home / 5,488.42-7,574.08-3,130.70

Finding the Fourth Proportional to 5,488.42, 7,574.08 and 3,130.70

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Solution

The fourth proportional to 5,488.42, 7,574.08 and 3,130.70 is: 4,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.42 : 7,574.08 = 3,130.70 : x
  2. Step 2: Convert to fraction form
    5,488.42/7,574.08 = 3,130.70/x
  3. Step 3: Cross multiply
    5,488.42x = 7,574.08 × 3,130.70
  4. Step 4: Simplify right side
    5,488.42x = 23,712,172.26
  5. Step 5: Solve for x
    x = 23,712,172.26/5,488.42
  6. Step 6: Final answer
    x = 4,320.40

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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.