Home / 5,303.80-7,320.18-4,042.90

Finding the Fourth Proportional to 5,303.80, 7,320.18 and 4,042.90

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Solution

The fourth proportional to 5,303.80, 7,320.18 and 4,042.90 is: 5,579.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.80 : 7,320.18 = 4,042.90 : x
  2. Step 2: Convert to fraction form
    5,303.80/7,320.18 = 4,042.90/x
  3. Step 3: Cross multiply
    5,303.80x = 7,320.18 × 4,042.90
  4. Step 4: Simplify right side
    5,303.80x = 29,594,755.72
  5. Step 5: Solve for x
    x = 29,594,755.72/5,303.80
  6. Step 6: Final answer
    x = 5,579.92

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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.