Home / 1,544.16-2,130.76-984.40

Finding the Fourth Proportional to 1,544.16, 2,130.76 and 984.40

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Solution

The fourth proportional to 1,544.16, 2,130.76 and 984.40 is: 1,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.16 : 2,130.76 = 984.40 : x
  2. Step 2: Convert to fraction form
    1,544.16/2,130.76 = 984.40/x
  3. Step 3: Cross multiply
    1,544.16x = 2,130.76 × 984.40
  4. Step 4: Simplify right side
    1,544.16x = 2,097,522.50
  5. Step 5: Solve for x
    x = 2,097,522.50/1,544.16
  6. Step 6: Final answer
    x = 1,358.35

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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.