Home / 2,319.02-3,478.86-675.35

Finding the Fourth Proportional to 2,319.02, 3,478.86 and 675.35

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Solution

The fourth proportional to 2,319.02, 3,478.86 and 675.35 is: 1,013.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.02 : 3,478.86 = 675.35 : x
  2. Step 2: Convert to fraction form
    2,319.02/3,478.86 = 675.35/x
  3. Step 3: Cross multiply
    2,319.02x = 3,478.86 × 675.35
  4. Step 4: Simplify right side
    2,319.02x = 2,349,430.71
  5. Step 5: Solve for x
    x = 2,349,430.71/2,319.02
  6. Step 6: Final answer
    x = 1,013.12

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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.