Home / 2,931.48-4,390.60-2,057.84

Finding the Fourth Proportional to 2,931.48, 4,390.60 and 2,057.84

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Solution

The fourth proportional to 2,931.48, 4,390.60 and 2,057.84 is: 3,082.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.48 : 4,390.60 = 2,057.84 : x
  2. Step 2: Convert to fraction form
    2,931.48/4,390.60 = 2,057.84/x
  3. Step 3: Cross multiply
    2,931.48x = 4,390.60 × 2,057.84
  4. Step 4: Simplify right side
    2,931.48x = 9,035,152.30
  5. Step 5: Solve for x
    x = 9,035,152.30/2,931.48
  6. Step 6: Final answer
    x = 3,082.11

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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.