Home / 5,263.20-7,240.86-5,117.40

Finding the Fourth Proportional to 5,263.20, 7,240.86 and 5,117.40

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Solution

The fourth proportional to 5,263.20, 7,240.86 and 5,117.40 is: 7,040.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,263.20 : 7,240.86 = 5,117.40 : x
  2. Step 2: Convert to fraction form
    5,263.20/7,240.86 = 5,117.40/x
  3. Step 3: Cross multiply
    5,263.20x = 7,240.86 × 5,117.40
  4. Step 4: Simplify right side
    5,263.20x = 37,054,376.96
  5. Step 5: Solve for x
    x = 37,054,376.96/5,263.20
  6. Step 6: Final answer
    x = 7,040.28

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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.