Home / 2,780.02-4,132.48-2,697.10

Finding the Fourth Proportional to 2,780.02, 4,132.48 and 2,697.10

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Solution

The fourth proportional to 2,780.02, 4,132.48 and 2,697.10 is: 4,009.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.02 : 4,132.48 = 2,697.10 : x
  2. Step 2: Convert to fraction form
    2,780.02/4,132.48 = 2,697.10/x
  3. Step 3: Cross multiply
    2,780.02x = 4,132.48 × 2,697.10
  4. Step 4: Simplify right side
    2,780.02x = 11,145,711.81
  5. Step 5: Solve for x
    x = 11,145,711.81/2,780.02
  6. Step 6: Final answer
    x = 4,009.22

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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.