Home / 5,320.40-7,342.16-2,930.31

Finding the Fourth Proportional to 5,320.40, 7,342.16 and 2,930.31

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Solution

The fourth proportional to 5,320.40, 7,342.16 and 2,930.31 is: 4,043.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,320.40 : 7,342.16 = 2,930.31 : x
  2. Step 2: Convert to fraction form
    5,320.40/7,342.16 = 2,930.31/x
  3. Step 3: Cross multiply
    5,320.40x = 7,342.16 × 2,930.31
  4. Step 4: Simplify right side
    5,320.40x = 21,514,830.55
  5. Step 5: Solve for x
    x = 21,514,830.55/5,320.40
  6. Step 6: Final answer
    x = 4,043.84

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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.