Home / 2,423.19-3,343.59-1,428.51

Finding the Fourth Proportional to 2,423.19, 3,343.59 and 1,428.51

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Solution

The fourth proportional to 2,423.19, 3,343.59 and 1,428.51 is: 1,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.19 : 3,343.59 = 1,428.51 : x
  2. Step 2: Convert to fraction form
    2,423.19/3,343.59 = 1,428.51/x
  3. Step 3: Cross multiply
    2,423.19x = 3,343.59 × 1,428.51
  4. Step 4: Simplify right side
    2,423.19x = 4,776,351.75
  5. Step 5: Solve for x
    x = 4,776,351.75/2,423.19
  6. Step 6: Final answer
    x = 1,971.10

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Half scale
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Double scale
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1.5x scale

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.