Home / 2,127.60-3,192.96-1,435.68

Finding the Fourth Proportional to 2,127.60, 3,192.96 and 1,435.68

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Solution

The fourth proportional to 2,127.60, 3,192.96 and 1,435.68 is: 2,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.60 : 3,192.96 = 1,435.68 : x
  2. Step 2: Convert to fraction form
    2,127.60/3,192.96 = 1,435.68/x
  3. Step 3: Cross multiply
    2,127.60x = 3,192.96 × 1,435.68
  4. Step 4: Simplify right side
    2,127.60x = 4,584,068.81
  5. Step 5: Solve for x
    x = 4,584,068.81/2,127.60
  6. Step 6: Final answer
    x = 2,154.57

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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.