Home / 1,458.34-2,172.45-1,368.70

Finding the Fourth Proportional to 1,458.34, 2,172.45 and 1,368.70

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Solution

The fourth proportional to 1,458.34, 2,172.45 and 1,368.70 is: 2,038.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.34 : 2,172.45 = 1,368.70 : x
  2. Step 2: Convert to fraction form
    1,458.34/2,172.45 = 1,368.70/x
  3. Step 3: Cross multiply
    1,458.34x = 2,172.45 × 1,368.70
  4. Step 4: Simplify right side
    1,458.34x = 2,973,432.32
  5. Step 5: Solve for x
    x = 2,973,432.32/1,458.34
  6. Step 6: Final answer
    x = 2,038.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.