Home / 1,038.46-1,554.48-890.83

Finding the Fourth Proportional to 1,038.46, 1,554.48 and 890.83

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Solution

The fourth proportional to 1,038.46, 1,554.48 and 890.83 is: 1,333.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038.46 : 1,554.48 = 890.83 : x
  2. Step 2: Convert to fraction form
    1,038.46/1,554.48 = 890.83/x
  3. Step 3: Cross multiply
    1,038.46x = 1,554.48 × 890.83
  4. Step 4: Simplify right side
    1,038.46x = 1,384,777.42
  5. Step 5: Solve for x
    x = 1,384,777.42/1,038.46
  6. Step 6: Final answer
    x = 1,333.49

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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.