Home / 1,497.74-2,235.52-1,405.40

Finding the Fourth Proportional to 1,497.74, 2,235.52 and 1,405.40

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Solution

The fourth proportional to 1,497.74, 2,235.52 and 1,405.40 is: 2,097.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,497.74 : 2,235.52 = 1,405.40 : x
  2. Step 2: Convert to fraction form
    1,497.74/2,235.52 = 1,405.40/x
  3. Step 3: Cross multiply
    1,497.74x = 2,235.52 × 1,405.40
  4. Step 4: Simplify right side
    1,497.74x = 3,141,790.71
  5. Step 5: Solve for x
    x = 3,141,790.71/1,497.74
  6. Step 6: Final answer
    x = 2,097.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.