Home / 2,430.91-3,638.53-1,259.30

Finding the Fourth Proportional to 2,430.91, 3,638.53 and 1,259.30

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Solution

The fourth proportional to 2,430.91, 3,638.53 and 1,259.30 is: 1,884.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.91 : 3,638.53 = 1,259.30 : x
  2. Step 2: Convert to fraction form
    2,430.91/3,638.53 = 1,259.30/x
  3. Step 3: Cross multiply
    2,430.91x = 3,638.53 × 1,259.30
  4. Step 4: Simplify right side
    2,430.91x = 4,582,000.83
  5. Step 5: Solve for x
    x = 4,582,000.83/2,430.91
  6. Step 6: Final answer
    x = 1,884.89

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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.