Home / 2,400.76-3,312.81-1,771.63

Finding the Fourth Proportional to 2,400.76, 3,312.81 and 1,771.63

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Solution

The fourth proportional to 2,400.76, 3,312.81 and 1,771.63 is: 2,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.76 : 3,312.81 = 1,771.63 : x
  2. Step 2: Convert to fraction form
    2,400.76/3,312.81 = 1,771.63/x
  3. Step 3: Cross multiply
    2,400.76x = 3,312.81 × 1,771.63
  4. Step 4: Simplify right side
    2,400.76x = 5,869,073.58
  5. Step 5: Solve for x
    x = 5,869,073.58/2,400.76
  6. Step 6: Final answer
    x = 2,444.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.