Home / 3,730.21-5,595.28-1,390.13

Finding the Fourth Proportional to 3,730.21, 5,595.28 and 1,390.13

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Solution

The fourth proportional to 3,730.21, 5,595.28 and 1,390.13 is: 2,085.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.21 : 5,595.28 = 1,390.13 : x
  2. Step 2: Convert to fraction form
    3,730.21/5,595.28 = 1,390.13/x
  3. Step 3: Cross multiply
    3,730.21x = 5,595.28 × 1,390.13
  4. Step 4: Simplify right side
    3,730.21x = 7,778,182.31
  5. Step 5: Solve for x
    x = 7,778,182.31/3,730.21
  6. Step 6: Final answer
    x = 2,085.19

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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.