Home / 2,239.60-3,359.40-1,877.80

Finding the Fourth Proportional to 2,239.60, 3,359.40 and 1,877.80

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Solution

The fourth proportional to 2,239.60, 3,359.40 and 1,877.80 is: 2,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.60 : 3,359.40 = 1,877.80 : x
  2. Step 2: Convert to fraction form
    2,239.60/3,359.40 = 1,877.80/x
  3. Step 3: Cross multiply
    2,239.60x = 3,359.40 × 1,877.80
  4. Step 4: Simplify right side
    2,239.60x = 6,308,281.32
  5. Step 5: Solve for x
    x = 6,308,281.32/2,239.60
  6. Step 6: Final answer
    x = 2,816.70

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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.