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Finding the Fourth Proportional to 1,458.24, 2,011.56 and 898.32

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Solution

The fourth proportional to 1,458.24, 2,011.56 and 898.32 is: 1,239.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.24 : 2,011.56 = 898.32 : x
  2. Step 2: Convert to fraction form
    1,458.24/2,011.56 = 898.32/x
  3. Step 3: Cross multiply
    1,458.24x = 2,011.56 × 898.32
  4. Step 4: Simplify right side
    1,458.24x = 1,807,024.58
  5. Step 5: Solve for x
    x = 1,807,024.58/1,458.24
  6. Step 6: Final answer
    x = 1,239.18

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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.