Home / 1,485.86-2,051.52-926.45

Finding the Fourth Proportional to 1,485.86, 2,051.52 and 926.45

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Solution

The fourth proportional to 1,485.86, 2,051.52 and 926.45 is: 1,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.86 : 2,051.52 = 926.45 : x
  2. Step 2: Convert to fraction form
    1,485.86/2,051.52 = 926.45/x
  3. Step 3: Cross multiply
    1,485.86x = 2,051.52 × 926.45
  4. Step 4: Simplify right side
    1,485.86x = 1,900,624.67
  5. Step 5: Solve for x
    x = 1,900,624.67/1,485.86
  6. Step 6: Final answer
    x = 1,279.15

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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.