Home / 2,931.64-4,044.18-1,869.64

Finding the Fourth Proportional to 2,931.64, 4,044.18 and 1,869.64

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Solution

The fourth proportional to 2,931.64, 4,044.18 and 1,869.64 is: 2,579.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.64 : 4,044.18 = 1,869.64 : x
  2. Step 2: Convert to fraction form
    2,931.64/4,044.18 = 1,869.64/x
  3. Step 3: Cross multiply
    2,931.64x = 4,044.18 × 1,869.64
  4. Step 4: Simplify right side
    2,931.64x = 7,561,160.70
  5. Step 5: Solve for x
    x = 7,561,160.70/2,931.64
  6. Step 6: Final answer
    x = 2,579.16

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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.