Home / 2,590.32-3,574.80-1,707.78

Finding the Fourth Proportional to 2,590.32, 3,574.80 and 1,707.78

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Solution

The fourth proportional to 2,590.32, 3,574.80 and 1,707.78 is: 2,356.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.32 : 3,574.80 = 1,707.78 : x
  2. Step 2: Convert to fraction form
    2,590.32/3,574.80 = 1,707.78/x
  3. Step 3: Cross multiply
    2,590.32x = 3,574.80 × 1,707.78
  4. Step 4: Simplify right side
    2,590.32x = 6,104,971.94
  5. Step 5: Solve for x
    x = 6,104,971.94/2,590.32
  6. Step 6: Final answer
    x = 2,356.84

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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.