Home / 1,464.60-2,021.08-835.15

Finding the Fourth Proportional to 1,464.60, 2,021.08 and 835.15

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Solution

The fourth proportional to 1,464.60, 2,021.08 and 835.15 is: 1,152.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.60 : 2,021.08 = 835.15 : x
  2. Step 2: Convert to fraction form
    1,464.60/2,021.08 = 835.15/x
  3. Step 3: Cross multiply
    1,464.60x = 2,021.08 × 835.15
  4. Step 4: Simplify right side
    1,464.60x = 1,687,904.96
  5. Step 5: Solve for x
    x = 1,687,904.96/1,464.60
  6. Step 6: Final answer
    x = 1,152.47

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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.