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Finding the Fourth Proportional to 2,831.63, 3,907.65 and 1,652.93

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Solution

The fourth proportional to 2,831.63, 3,907.65 and 1,652.93 is: 2,281.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.63 : 3,907.65 = 1,652.93 : x
  2. Step 2: Convert to fraction form
    2,831.63/3,907.65 = 1,652.93/x
  3. Step 3: Cross multiply
    2,831.63x = 3,907.65 × 1,652.93
  4. Step 4: Simplify right side
    2,831.63x = 6,459,052.38
  5. Step 5: Solve for x
    x = 6,459,052.38/2,831.63
  6. Step 6: Final answer
    x = 2,281.04

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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.