Home / 6,748.18-9,312.72-3,915.34

Finding the Fourth Proportional to 6,748.18, 9,312.72 and 3,915.34

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Solution

The fourth proportional to 6,748.18, 9,312.72 and 3,915.34 is: 5,403.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,748.18 : 9,312.72 = 3,915.34 : x
  2. Step 2: Convert to fraction form
    6,748.18/9,312.72 = 3,915.34/x
  3. Step 3: Cross multiply
    6,748.18x = 9,312.72 × 3,915.34
  4. Step 4: Simplify right side
    6,748.18x = 36,462,465.12
  5. Step 5: Solve for x
    x = 36,462,465.12/6,748.18
  6. Step 6: Final answer
    x = 5,403.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.