Home / 1,485.12-2,226.93-497.58

Finding the Fourth Proportional to 1,485.12, 2,226.93 and 497.58

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Solution

The fourth proportional to 1,485.12, 2,226.93 and 497.58 is: 746.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.12 : 2,226.93 = 497.58 : x
  2. Step 2: Convert to fraction form
    1,485.12/2,226.93 = 497.58/x
  3. Step 3: Cross multiply
    1,485.12x = 2,226.93 × 497.58
  4. Step 4: Simplify right side
    1,485.12x = 1,108,075.83
  5. Step 5: Solve for x
    x = 1,108,075.83/1,485.12
  6. Step 6: Final answer
    x = 746.12

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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.