Home / 1,448.16-2,172.12-474.24

Finding the Fourth Proportional to 1,448.16, 2,172.12 and 474.24

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Solution

The fourth proportional to 1,448.16, 2,172.12 and 474.24 is: 711.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448.16 : 2,172.12 = 474.24 : x
  2. Step 2: Convert to fraction form
    1,448.16/2,172.12 = 474.24/x
  3. Step 3: Cross multiply
    1,448.16x = 2,172.12 × 474.24
  4. Step 4: Simplify right side
    1,448.16x = 1,030,106.19
  5. Step 5: Solve for x
    x = 1,030,106.19/1,448.16
  6. Step 6: Final answer
    x = 711.32

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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.