Home / 1,054.61-1,455.54-661.69

Finding the Fourth Proportional to 1,054.61, 1,455.54 and 661.69

Calculator

Solution

The fourth proportional to 1,054.61, 1,455.54 and 661.69 is: 913.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.61 : 1,455.54 = 661.69 : x
  2. Step 2: Convert to fraction form
    1,054.61/1,455.54 = 661.69/x
  3. Step 3: Cross multiply
    1,054.61x = 1,455.54 × 661.69
  4. Step 4: Simplify right side
    1,054.61x = 963,112.95
  5. Step 5: Solve for x
    x = 963,112.95/1,054.61
  6. Step 6: Final answer
    x = 913.24

Related Problems

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.