Home / 7,312.20-10,090.14-4,125.66

Finding the Fourth Proportional to 7,312.20, 10,090.14 and 4,125.66

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Solution

The fourth proportional to 7,312.20, 10,090.14 and 4,125.66 is: 5,693.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.20 : 10,090.14 = 4,125.66 : x
  2. Step 2: Convert to fraction form
    7,312.20/10,090.14 = 4,125.66/x
  3. Step 3: Cross multiply
    7,312.20x = 10,090.14 × 4,125.66
  4. Step 4: Simplify right side
    7,312.20x = 41,628,486.99
  5. Step 5: Solve for x
    x = 41,628,486.99/7,312.20
  6. Step 6: Final answer
    x = 5,693.02

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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.