Home / 5,345.43-7,376.73-2,987.61

Finding the Fourth Proportional to 5,345.43, 7,376.73 and 2,987.61

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Solution

The fourth proportional to 5,345.43, 7,376.73 and 2,987.61 is: 4,122.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.43 : 7,376.73 = 2,987.61 : x
  2. Step 2: Convert to fraction form
    5,345.43/7,376.73 = 2,987.61/x
  3. Step 3: Cross multiply
    5,345.43x = 7,376.73 × 2,987.61
  4. Step 4: Simplify right side
    5,345.43x = 22,038,792.32
  5. Step 5: Solve for x
    x = 22,038,792.32/5,345.43
  6. Step 6: Final answer
    x = 4,122.92

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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.