Home / 7,478.51-10,319.74-4,334.90

Finding the Fourth Proportional to 7,478.51, 10,319.74 and 4,334.90

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Solution

The fourth proportional to 7,478.51, 10,319.74 and 4,334.90 is: 5,981.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.51 : 10,319.74 = 4,334.90 : x
  2. Step 2: Convert to fraction form
    7,478.51/10,319.74 = 4,334.90/x
  3. Step 3: Cross multiply
    7,478.51x = 10,319.74 × 4,334.90
  4. Step 4: Simplify right side
    7,478.51x = 44,734,978.49
  5. Step 5: Solve for x
    x = 44,734,978.49/7,478.51
  6. Step 6: Final answer
    x = 5,981.81

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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.