Home / 1,113.40-1,670.10-464.13

Finding the Fourth Proportional to 1,113.40, 1,670.10 and 464.13

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Solution

The fourth proportional to 1,113.40, 1,670.10 and 464.13 is: 696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.40 : 1,670.10 = 464.13 : x
  2. Step 2: Convert to fraction form
    1,113.40/1,670.10 = 464.13/x
  3. Step 3: Cross multiply
    1,113.40x = 1,670.10 × 464.13
  4. Step 4: Simplify right side
    1,113.40x = 775,143.51
  5. Step 5: Solve for x
    x = 775,143.51/1,113.40
  6. Step 6: Final answer
    x = 696.20

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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.