Home / 1,742.40-2,401.92-1,152

Finding the Fourth Proportional to 1,742.40, 2,401.92 and 1,152

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Solution

The fourth proportional to 1,742.40, 2,401.92 and 1,152 is: 1,588.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.40 : 2,401.92 = 1,152 : x
  2. Step 2: Convert to fraction form
    1,742.40/2,401.92 = 1,152/x
  3. Step 3: Cross multiply
    1,742.40x = 2,401.92 × 1,152
  4. Step 4: Simplify right side
    1,742.40x = 2,767,011.84
  5. Step 5: Solve for x
    x = 2,767,011.84/1,742.40
  6. Step 6: Final answer
    x = 1,588.05

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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.