Home / 3,579.24-5,368.40-1,386.47

Finding the Fourth Proportional to 3,579.24, 5,368.40 and 1,386.47

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Solution

The fourth proportional to 3,579.24, 5,368.40 and 1,386.47 is: 2,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.24 : 5,368.40 = 1,386.47 : x
  2. Step 2: Convert to fraction form
    3,579.24/5,368.40 = 1,386.47/x
  3. Step 3: Cross multiply
    3,579.24x = 5,368.40 × 1,386.47
  4. Step 4: Simplify right side
    3,579.24x = 7,443,091.77
  5. Step 5: Solve for x
    x = 7,443,091.77/3,579.24
  6. Step 6: Final answer
    x = 2,079.52

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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.