Home / 3,036.89-4,554.99-815.91

Finding the Fourth Proportional to 3,036.89, 4,554.99 and 815.91

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Solution

The fourth proportional to 3,036.89, 4,554.99 and 815.91 is: 1,223.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,036.89 : 4,554.99 = 815.91 : x
  2. Step 2: Convert to fraction form
    3,036.89/4,554.99 = 815.91/x
  3. Step 3: Cross multiply
    3,036.89x = 4,554.99 × 815.91
  4. Step 4: Simplify right side
    3,036.89x = 3,716,444.81
  5. Step 5: Solve for x
    x = 3,716,444.81/3,036.89
  6. Step 6: Final answer
    x = 1,223.77

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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.