Home / 6,915.64-10,373.39-1,985.31

Finding the Fourth Proportional to 6,915.64, 10,373.39 and 1,985.31

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Solution

The fourth proportional to 6,915.64, 10,373.39 and 1,985.31 is: 2,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.64 : 10,373.39 = 1,985.31 : x
  2. Step 2: Convert to fraction form
    6,915.64/10,373.39 = 1,985.31/x
  3. Step 3: Cross multiply
    6,915.64x = 10,373.39 × 1,985.31
  4. Step 4: Simplify right side
    6,915.64x = 20,594,394.90
  5. Step 5: Solve for x
    x = 20,594,394.90/6,915.64
  6. Step 6: Final answer
    x = 2,977.94

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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.