Home / 1,437.10-2,152.80-1,127.50

Finding the Fourth Proportional to 1,437.10, 2,152.80 and 1,127.50

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Solution

The fourth proportional to 1,437.10, 2,152.80 and 1,127.50 is: 1,689.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.10 : 2,152.80 = 1,127.50 : x
  2. Step 2: Convert to fraction form
    1,437.10/2,152.80 = 1,127.50/x
  3. Step 3: Cross multiply
    1,437.10x = 2,152.80 × 1,127.50
  4. Step 4: Simplify right side
    1,437.10x = 2,427,282
  5. Step 5: Solve for x
    x = 2,427,282/1,437.10
  6. Step 6: Final answer
    x = 1,689.01

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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.