Home / 2,875.32-3,970.44-1,814.99

Finding the Fourth Proportional to 2,875.32, 3,970.44 and 1,814.99

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Solution

The fourth proportional to 2,875.32, 3,970.44 and 1,814.99 is: 2,506.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,875.32 : 3,970.44 = 1,814.99 : x
  2. Step 2: Convert to fraction form
    2,875.32/3,970.44 = 1,814.99/x
  3. Step 3: Cross multiply
    2,875.32x = 3,970.44 × 1,814.99
  4. Step 4: Simplify right side
    2,875.32x = 7,206,289.04
  5. Step 5: Solve for x
    x = 7,206,289.04/2,875.32
  6. Step 6: Final answer
    x = 2,506.26

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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.