Home / 1,510.36-2,085.16-1,015.64

Finding the Fourth Proportional to 1,510.36, 2,085.16 and 1,015.64

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Solution

The fourth proportional to 1,510.36, 2,085.16 and 1,015.64 is: 1,402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.36 : 2,085.16 = 1,015.64 : x
  2. Step 2: Convert to fraction form
    1,510.36/2,085.16 = 1,015.64/x
  3. Step 3: Cross multiply
    1,510.36x = 2,085.16 × 1,015.64
  4. Step 4: Simplify right side
    1,510.36x = 2,117,771.90
  5. Step 5: Solve for x
    x = 2,117,771.90/1,510.36
  6. Step 6: Final answer
    x = 1,402.16

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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.