Home / 5,370.78-7,407.93-5,190.15

Finding the Fourth Proportional to 5,370.78, 7,407.93 and 5,190.15

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Solution

The fourth proportional to 5,370.78, 7,407.93 and 5,190.15 is: 7,158.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.78 : 7,407.93 = 5,190.15 : x
  2. Step 2: Convert to fraction form
    5,370.78/7,407.93 = 5,190.15/x
  3. Step 3: Cross multiply
    5,370.78x = 7,407.93 × 5,190.15
  4. Step 4: Simplify right side
    5,370.78x = 38,448,267.89
  5. Step 5: Solve for x
    x = 38,448,267.89/5,370.78
  6. Step 6: Final answer
    x = 7,158.79

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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.