Home / 2,210.78-3,049.53-1,313.92

Finding the Fourth Proportional to 2,210.78, 3,049.53 and 1,313.92

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Solution

The fourth proportional to 2,210.78, 3,049.53 and 1,313.92 is: 1,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.78 : 3,049.53 = 1,313.92 : x
  2. Step 2: Convert to fraction form
    2,210.78/3,049.53 = 1,313.92/x
  3. Step 3: Cross multiply
    2,210.78x = 3,049.53 × 1,313.92
  4. Step 4: Simplify right side
    2,210.78x = 4,006,820.19
  5. Step 5: Solve for x
    x = 4,006,820.19/2,210.78
  6. Step 6: Final answer
    x = 1,812.40

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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.