Home / 1,941.72-2,913.08-1,248.72

Finding the Fourth Proportional to 1,941.72, 2,913.08 and 1,248.72

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Solution

The fourth proportional to 1,941.72, 2,913.08 and 1,248.72 is: 1,873.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.72 : 2,913.08 = 1,248.72 : x
  2. Step 2: Convert to fraction form
    1,941.72/2,913.08 = 1,248.72/x
  3. Step 3: Cross multiply
    1,941.72x = 2,913.08 × 1,248.72
  4. Step 4: Simplify right side
    1,941.72x = 3,637,621.26
  5. Step 5: Solve for x
    x = 3,637,621.26/1,941.72
  6. Step 6: Final answer
    x = 1,873.40

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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.