Home / 1,530.47-2,305.91-1,384.39

Finding the Fourth Proportional to 1,530.47, 2,305.91 and 1,384.39

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Solution

The fourth proportional to 1,530.47, 2,305.91 and 1,384.39 is: 2,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.47 : 2,305.91 = 1,384.39 : x
  2. Step 2: Convert to fraction form
    1,530.47/2,305.91 = 1,384.39/x
  3. Step 3: Cross multiply
    1,530.47x = 2,305.91 × 1,384.39
  4. Step 4: Simplify right side
    1,530.47x = 3,192,278.74
  5. Step 5: Solve for x
    x = 3,192,278.74/1,530.47
  6. Step 6: Final answer
    x = 2,085.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.