Home / 2,957.12-4,435.48-1,313.76

Finding the Fourth Proportional to 2,957.12, 4,435.48 and 1,313.76

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Solution

The fourth proportional to 2,957.12, 4,435.48 and 1,313.76 is: 1,970.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.12 : 4,435.48 = 1,313.76 : x
  2. Step 2: Convert to fraction form
    2,957.12/4,435.48 = 1,313.76/x
  3. Step 3: Cross multiply
    2,957.12x = 4,435.48 × 1,313.76
  4. Step 4: Simplify right side
    2,957.12x = 5,827,156.20
  5. Step 5: Solve for x
    x = 5,827,156.20/2,957.12
  6. Step 6: Final answer
    x = 1,970.55

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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.