Home / 3,555.81-5,333.49-1,215.72

Finding the Fourth Proportional to 3,555.81, 5,333.49 and 1,215.72

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Solution

The fourth proportional to 3,555.81, 5,333.49 and 1,215.72 is: 1,823.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.81 : 5,333.49 = 1,215.72 : x
  2. Step 2: Convert to fraction form
    3,555.81/5,333.49 = 1,215.72/x
  3. Step 3: Cross multiply
    3,555.81x = 5,333.49 × 1,215.72
  4. Step 4: Simplify right side
    3,555.81x = 6,484,030.46
  5. Step 5: Solve for x
    x = 6,484,030.46/3,555.81
  6. Step 6: Final answer
    x = 1,823.50

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Double scale
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1.5x scale

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.