Home / 2,445.85-3,650.88-2,101.40

Finding the Fourth Proportional to 2,445.85, 3,650.88 and 2,101.40

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Solution

The fourth proportional to 2,445.85, 3,650.88 and 2,101.40 is: 3,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.85 : 3,650.88 = 2,101.40 : x
  2. Step 2: Convert to fraction form
    2,445.85/3,650.88 = 2,101.40/x
  3. Step 3: Cross multiply
    2,445.85x = 3,650.88 × 2,101.40
  4. Step 4: Simplify right side
    2,445.85x = 7,671,959.23
  5. Step 5: Solve for x
    x = 7,671,959.23/2,445.85
  6. Step 6: Final answer
    x = 3,136.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.