Home / 2,400.92-3,313.10-2,151.40

Finding the Fourth Proportional to 2,400.92, 3,313.10 and 2,151.40

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Solution

The fourth proportional to 2,400.92, 3,313.10 and 2,151.40 is: 2,968.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.92 : 3,313.10 = 2,151.40 : x
  2. Step 2: Convert to fraction form
    2,400.92/3,313.10 = 2,151.40/x
  3. Step 3: Cross multiply
    2,400.92x = 3,313.10 × 2,151.40
  4. Step 4: Simplify right side
    2,400.92x = 7,127,803.34
  5. Step 5: Solve for x
    x = 7,127,803.34/2,400.92
  6. Step 6: Final answer
    x = 2,968.78

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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.