Home / 1,384.70-2,077.05-1,140.62

Finding the Fourth Proportional to 1,384.70, 2,077.05 and 1,140.62

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Solution

The fourth proportional to 1,384.70, 2,077.05 and 1,140.62 is: 1,710.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384.70 : 2,077.05 = 1,140.62 : x
  2. Step 2: Convert to fraction form
    1,384.70/2,077.05 = 1,140.62/x
  3. Step 3: Cross multiply
    1,384.70x = 2,077.05 × 1,140.62
  4. Step 4: Simplify right side
    1,384.70x = 2,369,124.77
  5. Step 5: Solve for x
    x = 2,369,124.77/1,384.70
  6. Step 6: Final answer
    x = 1,710.93

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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.