Home / 6,655.60-9,985.12-1,975.57

Finding the Fourth Proportional to 6,655.60, 9,985.12 and 1,975.57

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Solution

The fourth proportional to 6,655.60, 9,985.12 and 1,975.57 is: 2,963.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.60 : 9,985.12 = 1,975.57 : x
  2. Step 2: Convert to fraction form
    6,655.60/9,985.12 = 1,975.57/x
  3. Step 3: Cross multiply
    6,655.60x = 9,985.12 × 1,975.57
  4. Step 4: Simplify right side
    6,655.60x = 19,726,243.71
  5. Step 5: Solve for x
    x = 19,726,243.71/6,655.60
  6. Step 6: Final answer
    x = 2,963.86

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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.