Home / 1,935.30-2,898.90-1,570.80

Finding the Fourth Proportional to 1,935.30, 2,898.90 and 1,570.80

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Solution

The fourth proportional to 1,935.30, 2,898.90 and 1,570.80 is: 2,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.30 : 2,898.90 = 1,570.80 : x
  2. Step 2: Convert to fraction form
    1,935.30/2,898.90 = 1,570.80/x
  3. Step 3: Cross multiply
    1,935.30x = 2,898.90 × 1,570.80
  4. Step 4: Simplify right side
    1,935.30x = 4,553,592.12
  5. Step 5: Solve for x
    x = 4,553,592.12/1,935.30
  6. Step 6: Final answer
    x = 2,352.91

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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.