Home / 1,485.07-2,228.95-792.32

Finding the Fourth Proportional to 1,485.07, 2,228.95 and 792.32

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Solution

The fourth proportional to 1,485.07, 2,228.95 and 792.32 is: 1,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.07 : 2,228.95 = 792.32 : x
  2. Step 2: Convert to fraction form
    1,485.07/2,228.95 = 792.32/x
  3. Step 3: Cross multiply
    1,485.07x = 2,228.95 × 792.32
  4. Step 4: Simplify right side
    1,485.07x = 1,766,041.66
  5. Step 5: Solve for x
    x = 1,766,041.66/1,485.07
  6. Step 6: Final answer
    x = 1,189.20

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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.