Home / 2,530.42-3,490.41-1,970.26

Finding the Fourth Proportional to 2,530.42, 3,490.41 and 1,970.26

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Solution

The fourth proportional to 2,530.42, 3,490.41 and 1,970.26 is: 2,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,530.42 : 3,490.41 = 1,970.26 : x
  2. Step 2: Convert to fraction form
    2,530.42/3,490.41 = 1,970.26/x
  3. Step 3: Cross multiply
    2,530.42x = 3,490.41 × 1,970.26
  4. Step 4: Simplify right side
    2,530.42x = 6,877,015.21
  5. Step 5: Solve for x
    x = 6,877,015.21/2,530.42
  6. Step 6: Final answer
    x = 2,717.74

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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.