Home / 5,430.49-8,145.70-1,534.88

Finding the Fourth Proportional to 5,430.49, 8,145.70 and 1,534.88

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Solution

The fourth proportional to 5,430.49, 8,145.70 and 1,534.88 is: 2,302.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.49 : 8,145.70 = 1,534.88 : x
  2. Step 2: Convert to fraction form
    5,430.49/8,145.70 = 1,534.88/x
  3. Step 3: Cross multiply
    5,430.49x = 8,145.70 × 1,534.88
  4. Step 4: Simplify right side
    5,430.49x = 12,502,672.02
  5. Step 5: Solve for x
    x = 12,502,672.02/5,430.49
  6. Step 6: Final answer
    x = 2,302.31

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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.