Home / 7,120.17-10,679.04-1,925.64

Finding the Fourth Proportional to 7,120.17, 10,679.04 and 1,925.64

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Solution

The fourth proportional to 7,120.17, 10,679.04 and 1,925.64 is: 2,888.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.17 : 10,679.04 = 1,925.64 : x
  2. Step 2: Convert to fraction form
    7,120.17/10,679.04 = 1,925.64/x
  3. Step 3: Cross multiply
    7,120.17x = 10,679.04 × 1,925.64
  4. Step 4: Simplify right side
    7,120.17x = 20,563,986.59
  5. Step 5: Solve for x
    x = 20,563,986.59/7,120.17
  6. Step 6: Final answer
    x = 2,888.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.