Home / 1,491.12-2,056.04-1,210.49

Finding the Fourth Proportional to 1,491.12, 2,056.04 and 1,210.49

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Solution

The fourth proportional to 1,491.12, 2,056.04 and 1,210.49 is: 1,669.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.12 : 2,056.04 = 1,210.49 : x
  2. Step 2: Convert to fraction form
    1,491.12/2,056.04 = 1,210.49/x
  3. Step 3: Cross multiply
    1,491.12x = 2,056.04 × 1,210.49
  4. Step 4: Simplify right side
    1,491.12x = 2,488,799.53
  5. Step 5: Solve for x
    x = 2,488,799.53/1,491.12
  6. Step 6: Final answer
    x = 1,669.08

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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.