Home / 1,407.45-2,110.57-541.16

Finding the Fourth Proportional to 1,407.45, 2,110.57 and 541.16

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Solution

The fourth proportional to 1,407.45, 2,110.57 and 541.16 is: 811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.45 : 2,110.57 = 541.16 : x
  2. Step 2: Convert to fraction form
    1,407.45/2,110.57 = 541.16/x
  3. Step 3: Cross multiply
    1,407.45x = 2,110.57 × 541.16
  4. Step 4: Simplify right side
    1,407.45x = 1,142,156.06
  5. Step 5: Solve for x
    x = 1,142,156.06/1,407.45
  6. Step 6: Final answer
    x = 811.51

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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.