Home / 5,184.81-7,155.14-3,090.15

Finding the Fourth Proportional to 5,184.81, 7,155.14 and 3,090.15

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Solution

The fourth proportional to 5,184.81, 7,155.14 and 3,090.15 is: 4,264.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,184.81 : 7,155.14 = 3,090.15 : x
  2. Step 2: Convert to fraction form
    5,184.81/7,155.14 = 3,090.15/x
  3. Step 3: Cross multiply
    5,184.81x = 7,155.14 × 3,090.15
  4. Step 4: Simplify right side
    5,184.81x = 22,110,440.42
  5. Step 5: Solve for x
    x = 22,110,440.42/5,184.81
  6. Step 6: Final answer
    x = 4,264.46

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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.