Home / 2,780.60-4,165.30-1,737.40

Finding the Fourth Proportional to 2,780.60, 4,165.30 and 1,737.40

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Solution

The fourth proportional to 2,780.60, 4,165.30 and 1,737.40 is: 2,602.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.60 : 4,165.30 = 1,737.40 : x
  2. Step 2: Convert to fraction form
    2,780.60/4,165.30 = 1,737.40/x
  3. Step 3: Cross multiply
    2,780.60x = 4,165.30 × 1,737.40
  4. Step 4: Simplify right side
    2,780.60x = 7,236,792.22
  5. Step 5: Solve for x
    x = 7,236,792.22/2,780.60
  6. Step 6: Final answer
    x = 2,602.60

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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.