Home / 7,131.95-9,840.29-5,360.48

Finding the Fourth Proportional to 7,131.95, 9,840.29 and 5,360.48

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Solution

The fourth proportional to 7,131.95, 9,840.29 and 5,360.48 is: 7,396.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.95 : 9,840.29 = 5,360.48 : x
  2. Step 2: Convert to fraction form
    7,131.95/9,840.29 = 5,360.48/x
  3. Step 3: Cross multiply
    7,131.95x = 9,840.29 × 5,360.48
  4. Step 4: Simplify right side
    7,131.95x = 52,748,638.64
  5. Step 5: Solve for x
    x = 52,748,638.64/7,131.95
  6. Step 6: Final answer
    x = 7,396.10

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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.