Home / 1,931.35-2,896.98-470.51

Finding the Fourth Proportional to 1,931.35, 2,896.98 and 470.51

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Solution

The fourth proportional to 1,931.35, 2,896.98 and 470.51 is: 705.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931.35 : 2,896.98 = 470.51 : x
  2. Step 2: Convert to fraction form
    1,931.35/2,896.98 = 470.51/x
  3. Step 3: Cross multiply
    1,931.35x = 2,896.98 × 470.51
  4. Step 4: Simplify right side
    1,931.35x = 1,363,058.06
  5. Step 5: Solve for x
    x = 1,363,058.06/1,931.35
  6. Step 6: Final answer
    x = 705.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.