Home / 5,345.87-7,377.30-2,988.01

Finding the Fourth Proportional to 5,345.87, 7,377.30 and 2,988.01

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Solution

The fourth proportional to 5,345.87, 7,377.30 and 2,988.01 is: 4,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.87 : 7,377.30 = 2,988.01 : x
  2. Step 2: Convert to fraction form
    5,345.87/7,377.30 = 2,988.01/x
  3. Step 3: Cross multiply
    5,345.87x = 7,377.30 × 2,988.01
  4. Step 4: Simplify right side
    5,345.87x = 22,043,431.23
  5. Step 5: Solve for x
    x = 22,043,431.23/5,345.87
  6. Step 6: Final answer
    x = 4,123.45

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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.