Home / 5,430.76-8,145.06-1,534.12

Finding the Fourth Proportional to 5,430.76, 8,145.06 and 1,534.12

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Solution

The fourth proportional to 5,430.76, 8,145.06 and 1,534.12 is: 2,300.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.76 : 8,145.06 = 1,534.12 : x
  2. Step 2: Convert to fraction form
    5,430.76/8,145.06 = 1,534.12/x
  3. Step 3: Cross multiply
    5,430.76x = 8,145.06 × 1,534.12
  4. Step 4: Simplify right side
    5,430.76x = 12,495,499.45
  5. Step 5: Solve for x
    x = 12,495,499.45/5,430.76
  6. Step 6: Final answer
    x = 2,300.87

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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.