Home / 1,210.89-1,667.28-946.41

Finding the Fourth Proportional to 1,210.89, 1,667.28 and 946.41

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Solution

The fourth proportional to 1,210.89, 1,667.28 and 946.41 is: 1,303.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.89 : 1,667.28 = 946.41 : x
  2. Step 2: Convert to fraction form
    1,210.89/1,667.28 = 946.41/x
  3. Step 3: Cross multiply
    1,210.89x = 1,667.28 × 946.41
  4. Step 4: Simplify right side
    1,210.89x = 1,577,930.46
  5. Step 5: Solve for x
    x = 1,577,930.46/1,210.89
  6. Step 6: Final answer
    x = 1,303.12

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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.