Home / 1,576.30-2,359.58-928.30

Finding the Fourth Proportional to 1,576.30, 2,359.58 and 928.30

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Solution

The fourth proportional to 1,576.30, 2,359.58 and 928.30 is: 1,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.30 : 2,359.58 = 928.30 : x
  2. Step 2: Convert to fraction form
    1,576.30/2,359.58 = 928.30/x
  3. Step 3: Cross multiply
    1,576.30x = 2,359.58 × 928.30
  4. Step 4: Simplify right side
    1,576.30x = 2,190,386.32
  5. Step 5: Solve for x
    x = 2,190,386.32/1,576.30
  6. Step 6: Final answer
    x = 1,389.58

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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.