Home / 2,124.48-2,931.81-1,180.26

Finding the Fourth Proportional to 2,124.48, 2,931.81 and 1,180.26

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Solution

The fourth proportional to 2,124.48, 2,931.81 and 1,180.26 is: 1,628.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.48 : 2,931.81 = 1,180.26 : x
  2. Step 2: Convert to fraction form
    2,124.48/2,931.81 = 1,180.26/x
  3. Step 3: Cross multiply
    2,124.48x = 2,931.81 × 1,180.26
  4. Step 4: Simplify right side
    2,124.48x = 3,460,298.07
  5. Step 5: Solve for x
    x = 3,460,298.07/2,124.48
  6. Step 6: Final answer
    x = 1,628.77

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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.