Home / 1,528.47-2,105.60-1,434.51

Finding the Fourth Proportional to 1,528.47, 2,105.60 and 1,434.51

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Solution

The fourth proportional to 1,528.47, 2,105.60 and 1,434.51 is: 1,976.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.47 : 2,105.60 = 1,434.51 : x
  2. Step 2: Convert to fraction form
    1,528.47/2,105.60 = 1,434.51/x
  3. Step 3: Cross multiply
    1,528.47x = 2,105.60 × 1,434.51
  4. Step 4: Simplify right side
    1,528.47x = 3,020,497.08
  5. Step 5: Solve for x
    x = 3,020,497.08/1,528.47
  6. Step 6: Final answer
    x = 1,976.16

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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.