Home / 2,319.81-3,479.70-1,860.48

Finding the Fourth Proportional to 2,319.81, 3,479.70 and 1,860.48

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Solution

The fourth proportional to 2,319.81, 3,479.70 and 1,860.48 is: 2,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.81 : 3,479.70 = 1,860.48 : x
  2. Step 2: Convert to fraction form
    2,319.81/3,479.70 = 1,860.48/x
  3. Step 3: Cross multiply
    2,319.81x = 3,479.70 × 1,860.48
  4. Step 4: Simplify right side
    2,319.81x = 6,473,894.86
  5. Step 5: Solve for x
    x = 6,473,894.86/2,319.81
  6. Step 6: Final answer
    x = 2,790.70

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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.