Home / 1,604.80-2,214.78-975.19

Finding the Fourth Proportional to 1,604.80, 2,214.78 and 975.19

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Solution

The fourth proportional to 1,604.80, 2,214.78 and 975.19 is: 1,345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.80 : 2,214.78 = 975.19 : x
  2. Step 2: Convert to fraction form
    1,604.80/2,214.78 = 975.19/x
  3. Step 3: Cross multiply
    1,604.80x = 2,214.78 × 975.19
  4. Step 4: Simplify right side
    1,604.80x = 2,159,831.31
  5. Step 5: Solve for x
    x = 2,159,831.31/1,604.80
  6. Step 6: Final answer
    x = 1,345.86

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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.