Home / 1,538.50-2,307.74-384.25

Finding the Fourth Proportional to 1,538.50, 2,307.74 and 384.25

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Solution

The fourth proportional to 1,538.50, 2,307.74 and 384.25 is: 576.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.50 : 2,307.74 = 384.25 : x
  2. Step 2: Convert to fraction form
    1,538.50/2,307.74 = 384.25/x
  3. Step 3: Cross multiply
    1,538.50x = 2,307.74 × 384.25
  4. Step 4: Simplify right side
    1,538.50x = 886,749.10
  5. Step 5: Solve for x
    x = 886,749.10/1,538.50
  6. Step 6: Final answer
    x = 576.37

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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.