Home / 1,778.22-2,454.81-1,248.23

Finding the Fourth Proportional to 1,778.22, 2,454.81 and 1,248.23

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Solution

The fourth proportional to 1,778.22, 2,454.81 and 1,248.23 is: 1,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.22 : 2,454.81 = 1,248.23 : x
  2. Step 2: Convert to fraction form
    1,778.22/2,454.81 = 1,248.23/x
  3. Step 3: Cross multiply
    1,778.22x = 2,454.81 × 1,248.23
  4. Step 4: Simplify right side
    1,778.22x = 3,064,155.13
  5. Step 5: Solve for x
    x = 3,064,155.13/1,778.22
  6. Step 6: Final answer
    x = 1,723.16

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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.