Home / 2,931.42-4,044.60-1,812.90

Finding the Fourth Proportional to 2,931.42, 4,044.60 and 1,812.90

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Solution

The fourth proportional to 2,931.42, 4,044.60 and 1,812.90 is: 2,501.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.42 : 4,044.60 = 1,812.90 : x
  2. Step 2: Convert to fraction form
    2,931.42/4,044.60 = 1,812.90/x
  3. Step 3: Cross multiply
    2,931.42x = 4,044.60 × 1,812.90
  4. Step 4: Simplify right side
    2,931.42x = 7,332,455.34
  5. Step 5: Solve for x
    x = 7,332,455.34/2,931.42
  6. Step 6: Final answer
    x = 2,501.33

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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.