Home / 2,285.34-3,153.74-1,237.40

Finding the Fourth Proportional to 2,285.34, 3,153.74 and 1,237.40

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Solution

The fourth proportional to 2,285.34, 3,153.74 and 1,237.40 is: 1,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.34 : 3,153.74 = 1,237.40 : x
  2. Step 2: Convert to fraction form
    2,285.34/3,153.74 = 1,237.40/x
  3. Step 3: Cross multiply
    2,285.34x = 3,153.74 × 1,237.40
  4. Step 4: Simplify right side
    2,285.34x = 3,902,437.88
  5. Step 5: Solve for x
    x = 3,902,437.88/2,285.34
  6. Step 6: Final answer
    x = 1,707.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.