Home / 5,152.40-7,729.08-1,866.32

Finding the Fourth Proportional to 5,152.40, 7,729.08 and 1,866.32

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Solution

The fourth proportional to 5,152.40, 7,729.08 and 1,866.32 is: 2,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,152.40 : 7,729.08 = 1,866.32 : x
  2. Step 2: Convert to fraction form
    5,152.40/7,729.08 = 1,866.32/x
  3. Step 3: Cross multiply
    5,152.40x = 7,729.08 × 1,866.32
  4. Step 4: Simplify right side
    5,152.40x = 14,424,936.59
  5. Step 5: Solve for x
    x = 14,424,936.59/5,152.40
  6. Step 6: Final answer
    x = 2,799.65

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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.