Home / 7,740.04-10,681.20-4,203.20

Finding the Fourth Proportional to 7,740.04, 10,681.20 and 4,203.20

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Solution

The fourth proportional to 7,740.04, 10,681.20 and 4,203.20 is: 5,800.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.04 : 10,681.20 = 4,203.20 : x
  2. Step 2: Convert to fraction form
    7,740.04/10,681.20 = 4,203.20/x
  3. Step 3: Cross multiply
    7,740.04x = 10,681.20 × 4,203.20
  4. Step 4: Simplify right side
    7,740.04x = 44,895,219.84
  5. Step 5: Solve for x
    x = 44,895,219.84/7,740.04
  6. Step 6: Final answer
    x = 5,800.39

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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.