Home / 2,319.13-3,478.74-675.77

Finding the Fourth Proportional to 2,319.13, 3,478.74 and 675.77

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Solution

The fourth proportional to 2,319.13, 3,478.74 and 675.77 is: 1,013.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.13 : 3,478.74 = 675.77 : x
  2. Step 2: Convert to fraction form
    2,319.13/3,478.74 = 675.77/x
  3. Step 3: Cross multiply
    2,319.13x = 3,478.74 × 675.77
  4. Step 4: Simplify right side
    2,319.13x = 2,350,829.67
  5. Step 5: Solve for x
    x = 2,350,829.67/2,319.13
  6. Step 6: Final answer
    x = 1,013.67

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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.