Home / 7,780.86-10,740.60-4,637.25

Finding the Fourth Proportional to 7,780.86, 10,740.60 and 4,637.25

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Solution

The fourth proportional to 7,780.86, 10,740.60 and 4,637.25 is: 6,401.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.86 : 10,740.60 = 4,637.25 : x
  2. Step 2: Convert to fraction form
    7,780.86/10,740.60 = 4,637.25/x
  3. Step 3: Cross multiply
    7,780.86x = 10,740.60 × 4,637.25
  4. Step 4: Simplify right side
    7,780.86x = 49,806,847.35
  5. Step 5: Solve for x
    x = 49,806,847.35/7,780.86
  6. Step 6: Final answer
    x = 6,401.20

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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.