Home / 2,972.75-4,459.79-1,585.35

Finding the Fourth Proportional to 2,972.75, 4,459.79 and 1,585.35

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Solution

The fourth proportional to 2,972.75, 4,459.79 and 1,585.35 is: 2,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.75 : 4,459.79 = 1,585.35 : x
  2. Step 2: Convert to fraction form
    2,972.75/4,459.79 = 1,585.35/x
  3. Step 3: Cross multiply
    2,972.75x = 4,459.79 × 1,585.35
  4. Step 4: Simplify right side
    2,972.75x = 7,070,332.04
  5. Step 5: Solve for x
    x = 7,070,332.04/2,972.75
  6. Step 6: Final answer
    x = 2,378.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.