Home / 2,923.60-4,385.46-1,690.12

Finding the Fourth Proportional to 2,923.60, 4,385.46 and 1,690.12

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Solution

The fourth proportional to 2,923.60, 4,385.46 and 1,690.12 is: 2,535.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.60 : 4,385.46 = 1,690.12 : x
  2. Step 2: Convert to fraction form
    2,923.60/4,385.46 = 1,690.12/x
  3. Step 3: Cross multiply
    2,923.60x = 4,385.46 × 1,690.12
  4. Step 4: Simplify right side
    2,923.60x = 7,411,953.66
  5. Step 5: Solve for x
    x = 7,411,953.66/2,923.60
  6. Step 6: Final answer
    x = 2,535.21

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1.5x scale

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.