Home / 7,119.66-10,678.67-1,925.13

Finding the Fourth Proportional to 7,119.66, 10,678.67 and 1,925.13

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Solution

The fourth proportional to 7,119.66, 10,678.67 and 1,925.13 is: 2,887.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.66 : 10,678.67 = 1,925.13 : x
  2. Step 2: Convert to fraction form
    7,119.66/10,678.67 = 1,925.13/x
  3. Step 3: Cross multiply
    7,119.66x = 10,678.67 × 1,925.13
  4. Step 4: Simplify right side
    7,119.66x = 20,557,779.40
  5. Step 5: Solve for x
    x = 20,557,779.40/7,119.66
  6. Step 6: Final answer
    x = 2,887.47

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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.