Home / 1,445.95-2,168.98-1,422.77

Finding the Fourth Proportional to 1,445.95, 2,168.98 and 1,422.77

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Solution

The fourth proportional to 1,445.95, 2,168.98 and 1,422.77 is: 2,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.95 : 2,168.98 = 1,422.77 : x
  2. Step 2: Convert to fraction form
    1,445.95/2,168.98 = 1,422.77/x
  3. Step 3: Cross multiply
    1,445.95x = 2,168.98 × 1,422.77
  4. Step 4: Simplify right side
    1,445.95x = 3,085,945.27
  5. Step 5: Solve for x
    x = 3,085,945.27/1,445.95
  6. Step 6: Final answer
    x = 2,134.20

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1.5x scale

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.