Home / 3,778.19-5,666.76-1,005.08

Finding the Fourth Proportional to 3,778.19, 5,666.76 and 1,005.08

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Solution

The fourth proportional to 3,778.19, 5,666.76 and 1,005.08 is: 1,507.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.19 : 5,666.76 = 1,005.08 : x
  2. Step 2: Convert to fraction form
    3,778.19/5,666.76 = 1,005.08/x
  3. Step 3: Cross multiply
    3,778.19x = 5,666.76 × 1,005.08
  4. Step 4: Simplify right side
    3,778.19x = 5,695,547.14
  5. Step 5: Solve for x
    x = 5,695,547.14/3,778.19
  6. Step 6: Final answer
    x = 1,507.48

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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.