Home / 5,430.19-8,145.74-1,732.95

Finding the Fourth Proportional to 5,430.19, 8,145.74 and 1,732.95

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Solution

The fourth proportional to 5,430.19, 8,145.74 and 1,732.95 is: 2,599.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.19 : 8,145.74 = 1,732.95 : x
  2. Step 2: Convert to fraction form
    5,430.19/8,145.74 = 1,732.95/x
  3. Step 3: Cross multiply
    5,430.19x = 8,145.74 × 1,732.95
  4. Step 4: Simplify right side
    5,430.19x = 14,116,119.40
  5. Step 5: Solve for x
    x = 14,116,119.40/5,430.19
  6. Step 6: Final answer
    x = 2,599.56

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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.